How Is a Lexile Measure Represented?
A Lexile measure is a reading ability or text difficulty score followed by an “L” (e.g. “850L”). The Lexile scale is a developmental scale for reading ranging from 200L for beginning readers to above 1700L for advanced text.
How Is a Text’s Lexile Measure Determined?
Lexile measures are based on two well-established predictors of how difficult a text is to comprehend: semantic difficulty (word frequency) and syntactic complexity (sentence length).